Why Your Florala Roof Looks Like It’s Growing a Science Experiment
Last spring, a homeowner on East Blvd in Florala noticed what looked like dark stains creeping across her north-facing roof slope. At first, she thought it was just dirt from pollen season—understandable given how the pine trees around Lake Jackson coat everything in a yellow film each March. But by July, those stains had spread into thick black streaks, and the shaded areas near her chimney were sporting what looked like miniature forest patches. Welcome to the reality of Alabama’s humid climate: your roof becomes prime real estate for algae and moss.


The culprit behind those unsightly black streaks is typically Gloeocapsa magma, a type of blue-green algae that feeds on the limestone filler used in asphalt shingles. Moss, on the other hand, establishes itself when airborne spores find moisture-retaining debris in your roof valleys and shaded spots. Florala’s position right on the Alabama-Florida border means we get the worst of both worlds: high humidity from the Gulf, afternoon thunderstorms that keep things perpetually damp, and enough heat to accelerate organic growth. Your roof doesn’t stand a chance without proper maintenance.
How Much Does Black Streaks on Roof Removal Cost in the 36442 Area?
Here’s what you can expect to pay for professional roof moss and algae removal in Florala. For a typical 1,500-2,000 square foot home (common in the neighborhoods around Five Points), you’re looking at $300-$600 for a complete soft wash roof cleaning. That price includes the treatment solution, labor, and a post-cleaning inspection. If you’ve got significant moss buildup—think anything thicker than a quarter-inch—add another $150-$300 because removal requires more delicate work to avoid damaging your shingles. Some companies offer package deals that include gutter cleaning, which makes sense since clogged gutters often contribute to the moisture problems that encourage moss growth in the first place.
The price varies based on roof pitch (steeper roofs require more safety equipment), accessibility, and how severe the growth has become. A ranch-style home with easy roof access will cost less than a two-story Victorian with multiple dormers. Get at least three quotes, and be suspicious of anyone offering significantly lower prices—they might be using high-pressure washing, which we’ll discuss shortly as a major no-no.
What’s the Difference Between Roof Cleaning Methods?
Not all roof moss and algae removal techniques are created equal. Here’s what you need to know about your options:
- Soft Wash Roof Cleaning: This method uses low-pressure water combined with specialized biodegradable solutions (typically sodium hypochlorite-based) that kill algae and moss at the root. The solution does the work, not the pressure. Application takes 2-4 hours, and results appear within days as dead organisms wash away with rain. This is the gold standard for roof moss removal without damage because it preserves shingle granules and doesn’t compromise your roof’s integrity.
- Pressure Washing: Avoid this like you’d avoid driving through flood waters on Highway 331. High-pressure water (anything above 1,200 PSI) strips protective granules from asphalt shingles, creating bare spots that accelerate weathering. You might remove the algae today, but you’ll need a new roof years earlier than necessary.
- Manual Scraping: Sometimes necessary for thick moss, but it requires professional expertise. Scraping in the wrong direction can lift shingle tabs and create leak points. If your moss is thick enough to require scraping, you’ve waited too long—but it’s still fixable with the right approach.
- DIY Chemical Treatments: Products like Wet & Forget or 30 Second Outdoor Cleaner work on mild algae stains, but they take weeks to show results and require multiple applications. Reasonable for maintenance between professional cleanings, but not effective for established growth.
How Can You Prevent Moss and Algae From Coming Back?
Once you’ve invested in roof moss and algae removal, you don’t want to repeat the expense every year. Prevention strategies make financial sense and extend your roof’s lifespan. Installing zinc strips for roof algae prevention along your ridge line is one of the most effective long-term solutions. These metal strips release zinc particles when it rains, creating an environment where algae can’t survive. Installation costs $200-$400 for a typical Florala home, and the strips last 10-15 years. You’ll notice a clean zone extending about 15 feet down-slope from the zinc strips within a few months.
If you’re facing a roof replacement anyway—and let’s be honest, many homes in the older sections of Florala are pushing 20+ years on their original roofs—consider algae resistant shingles installation. Manufacturers like GAF, CertainTeed, and Owens Corning now produce shingles with copper granules embedded in the surface. These “AR” (algae-resistant) shingles cost about 10-15% more than standard shingles but come with warranties against algae discoloration. Given that a full roof replacement in Florala runs $6,000-$12,000 depending on size and pitch, the extra $600-$1,200 for algae-resistant materials is a smart investment.
Three Mistakes That Make the Problem Worse
First, waiting until moss is visible from the street. By then, it’s established root systems that can actually lift shingle edges. Schedule an inspection if you notice any discoloration. Second, assuming those black streaks are “just cosmetic.” Algae doesn’t just look bad—it retains moisture against your shingles, accelerating granule loss and reducing your roof’s UV protection. Third, hiring someone who claims they can “blast it clean” with a pressure washer. You’ll get immediate results and long-term regret.
Finding Quality Soft Wash Roof Cleaning Near Me in Florala
When you’re ready to address your roof’s algae or moss problem, look for contractors who specifically mention soft washing or low-pressure cleaning methods. Ask potential contractors: “What PSI do you use?” (Answer should be under 500 PSI for soft washing), “What cleaning solution do you use?” (should explain the active ingredients), and “Do you offer a treatment warranty?” (reputable companies guarantee their work for 1-2 years). Make sure anyone working on your Florala, AL property carries both liability insurance and workers’ compensation—a fall from your roof shouldn’t become your financial nightmare. Local roofing professionals who understand our climate and common housing issues will assess not just the visible growth but also contributing factors like overhanging branches, inadequate attic ventilation, and gutter problems that keep your roof damp.